The switch from llvm::cl to OptTable (D83530) dropped --version, which is needed by some users. This patch also adds a -v alias, which is available in GNU addr2line. The version dumping is similar to llvm-objcopy --version (exotic): ``` llvm-symbolizer LLVM (http://llvm.org/): LLVM version 12.0.0git Optimized build with assertions. Default target: x86_64-unknown-linux-gnu Host CPU: skylake-avx512 ``` Reviewed By: dyung, jhenderson Differential Revision: https://reviews.llvm.org/D85624  | 
			||
|---|---|---|
| .. | ||
| CMakeLists.txt | ||
| Opts.td | ||
| llvm-symbolizer.cpp | ||